Umbrella



FIG. 1 is a front view of an umbrella embodying my new design; the rearview being identical to FIG. 1;

FIG. 2 is a left side view of the umbrella of FIG. 1; the right sideview being identical to FIG. 2;

FIG. 3 is a top view of the umbrella of FIG. 1;

FIG. 4 is a bottom view of the umbrella of FIG. 1;

FIG. 5 is an upper left perspective view of the umbrella of FIG. 1; anupper right perspective view being a mirror image of FIG. 5;

FIG. 6 is an enlarged view of portions of the upper left perspectiveview of the umbrella shown in FIG. 5; and,

FIG. 7 is refracted front view of the umbrella of FIG. 1.

CLAIM The ornamental design for an umbrella, as shown and described.